core-util-is

The `util.is*` functions introduced in Node v0.12.

v1.0.3 URL: https://unpkg.com/core-util-is@1.0.3/lib/util.js

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util isBuffer isArray isNumber isString isRegExp isThis isThat polyfill

@nevware21/ts-utils

Common JavaScript/TypeScript helper functions for better minification

v0.11.5 URL: https://unpkg.com/@nevware21/ts-utils@0.11.5/dist/es5/main/ts-utils.js

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ts typescript js javascript minification minify utils helper node browser worker webworker polyfill ES5 ES6 ES7 ES2015 ES2016 ES2017 ES2018 ES2019 ES2020 ECMAScript 5 ECMAScript 6 ECMAScript 7 ECMAScript 2015 ECMAScript 2016 ECMAScript 2017 ECMAScript 2018 ECMAScript 2019 ECMAScript 2020 getDocument getGlobal getHistory getInst getNavigator getWindow hasDocument hasHistory hasNavigator hasWindow isNode isWebWorker isArray isArrayBuffer isBlob isBoolean isDate isError isFile isFormData isFunction isIterable isIterator isNullOrUndefined isNumber isObject isPromise isPromiseLike isThenable isRegExp isStrictNullOrUndefined isStrictUndefined isString isTypeof isUndefined hasValue isDefined isNotTruthy isTruthy string left strLeft string right strRight normalize js name letter case lettercase camel case camelcase kebab case kebabcase snake case snakecase uppercase lowercase custom error asString hasOwn defineProperty timeout idle timer timer interval includes string contains html encode

@stdlib/assert-is-regexp-string

Test if a value is a regular expression string.

v0.2.2 URL: https://unpkg.com/@stdlib/assert-is-regexp-string@0.2.2/lib/index.js

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stdlib stdassert assertion assert utils util utilities utility isregexp regular expression regexp regex regular expression string str test validate valid is check

ts-util-is

TypeScript typeof utility helper with no dependencies.

v2.1.0 URL: https://unpkg.com/ts-util-is@2.1.0/index.js

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typescript util typeof type guards isArray isBase64 isBoolean isDate isDateValid isDefined isError isFunction isGuid isInfinity isNull isNumber isObject isRegExp isString isSymbol isUndefined isThis isThat polyfill

@stdlib/assert-is-regexp

Test if a value is a regular expression.

v0.2.2 URL: https://unpkg.com/@stdlib/assert-is-regexp@0.2.2/lib/index.js

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stdlib stdassert assertion assert utilities utility utils util valid validate regular expression regexp regex is type check instanceof isregexp isregex